Seed-planter.



R. R. GIBSON.

SEED PLANTER.

APPLIUATION FILED JAN. 31, 1913.

Patented July 29, 1913 4? g INVENTOR 8W4 Egg ATTORNEY I RUPERT t. ernson, or WAGO, TEXAS.

" SEED-PLANTER.

Specification 61 Letters Patent.

Patented July 29, 1913.

Application filed-January 31, 1913. Serial No. 745,397.

To all whom z'tmay concern:

Be it. known that. I, RUPERT R. .GmsoN, acitizen ofgthe United States, residing-at Waco, in the county "of-MCLennan..and.-State ofTexas, have invented certain new and useful Improvements in Seed-Planters, of

which the following is a-specitication.

Myjnventionpertains-to certain new and ueefulpimprovements in seed planters. of. the,

revolvingdistributer type.

The object of the invention is. to provide a, planter; having a revolving seed distributing drum provided with radialislots in which radially moving. plungers are arranged, and so operated thatI at. predetermined points seeds are received in, the pockets and subsequently ejected therefrom.

A further object is. to providea particular form of mechanism for performing the function just described.

Another object of the invention is to provide in combination with the said distributingdrum, a device preventing overloading pf, she seed pockets and assuring a uniform 0ap A still further object of the invention is tov provide. a device of the character described that will be strong, efficient, and

simple. and comparatively inexpensive to construct, also one in which the several parts.

will not be likely to. get out of working order.

With theabove and other objects in view the. invention has relation to certain novel features. of construction and, operation, an example of. which is described in the following; specification and illustrated in the accompanying; drawings, wherein;

Figure 1 is. a, side. elevation of the said drum and strippingroller, component parts being illustrated in section, Fig. -2 is a vertical sectional view on the line w m of Fig. 1, Fig. 3. is an end elevation of the planter, and Fig. 4:; is a view in elevation of the inner side of one of the drum plates. 1 In the drawings the numeral ldesignates an axlevhaving ground wheels 2 fastened on its extremities. This axle is rotatably confinedin bearing boxes 3 on the lower ends of standards 4: supporting a seed hopper 5 at their upper ends. Handles 6 are suitably secured to the hopper. a 7

Curved hangers 7 are,p'rovided at their upper ends WIth sharply bentears 8 attached to the front and rear sides of the hoppen The hangers have their lower ends. beveled and are separated sufficiently to form a seed discharge opening 9. These hangers .are combined to form a ring like casing 01; support and are curved to conform to the peripheral contour of. a seed drum 10 which is keyed on the axle so as to revolve in the hangers in close proximity to the inner. walls thereof.

. Y ..The hangershave a width approximately the same as that of the drum, and cam closure. plates 11 are secured to the hangers so as to inclose the drum and provide a work ing fit therebetween. The plates are removably secured to the hangers and have bearing bosses 12 through which the axle extends. Bearing collars 1 1 fastened on the axle impinge the bosses and retain the drum, in free operatingrelation to the plates 11 which are fastened to the hangers. The lower edges of thehopper are curved contiguous to the drum and are received in the shouldered portionsl5 of the plates 11 as shown in Fig. 2.

' The drum 10 is out out transversely to form a plural ty of radial slots 16 in which plungers 17 are arranged to operateradiallv of the drum as the same is revolved. These slots 16 are substantially square in plan, two walls being formed by the drum and he. side walls being provided by the plates 11. The heads of the plungers have substantially the same area as the slots and thus fit snugly therein. Each plunger has a slotted stem' 1.8 extending in the slot 16 from the plunger head toward the axle 1. In the slotted portion of each stem 18, the squared portion of a follower pin 19 is secured.

These pins project laterally on each side of the stems and are fastened in place by nuts 20 threaded thereon and impinging the sides of the stems. The pins 19 project into cam grooves or guideways 21 provided in the inner faces of the plates 11. The opposed grooves 21 correspond and when the drum 10 is revolved the pins 19follow the contour of the cam grooves whereby the plungers 17 are moved radially of the said drum in the slots 16. The specific contour of the grooves controls the movement of the plungers.

By observing Fig. 1 it will be seen that i when a .plunger is under the hopper 5 it is retracted or drawn into the slot 16 sufficiently to form a seed pocket at the upper end of the slot. It is obvious that this and C under t formed pocketmay be deepened or made moreshallow by removing one of the plates 11 and adjusting the plungers 17 on the p1ns 19 radially of the slots 16.

In the hopper at the forward side, a

smooth faced roller 22 is mounted trans versely thereof on a shaft 23 havmg bear ings in the walls of the hopper 5. An agitator 24 com rising radla less chain 28 passing about sprockets 29 and 30 secured respectively on the shafts 23 and 26 whereby the roller 22 and agitator 24 are revolved.

As shown in Fig. 1 each cam guideway 21 has a portion A concentric to the axle 1. ThlS portion A extends from a point approximately under the roller 21 to a polnt ap-' proximately over the discharge opening 9.- While the pins are traveling in the portion A, the plungers remain relatively fixed radially of the slots. The merges into a radially ofi-set ortion B whereby the pins 19 are carrie outward and the plungers moved outward radially whereby the seeds areejected through the opening 9. From the portion B, each groove 21 has a portion gradually swinging butward and finally merging into the portion A. This portion .0 is so arranged that a maximum loading point is established just as the plungers are brought under the hopper so the pockets can receive the seeds, and a gradual rise the merging oint between the portions A e roller '22, which latterpoint constitutes a minimum loading point.

It is obvious that at the maximum loading point, the pockets are deepest and prov1s1on is thus made for receiving moreseeds than are required, but the gradual rise of the portions 0' to the roller 22 will raise the plungers 17 and expel surplus seeds In this way a full load is assured. The roller 22 prevents overloading of the pockets and packs the seeds t ereinto thus assuring a 11 load. In operating the planter, the same is propelled along a furrow which is'suitably opened. The drum the axle and as the pockets hopper 5 they will be loa ed with seeds which are kept in a flowing condition by the revolution of the fingered a 'tator 24, the roller 22 being revolved wi Fprevent overloading of the pockets and will pack the seed therein. Sald pockets being loaded will remain so while ing in the portions Aof the grooves 21, until the portions B are encountered when said pins Wlll suddenly take the ofi-set contour of the grooves causing an outward radial .gers mounted in the slots,

portion A sharply is made from this point to 10 will be revolved by ass under the the pins 19 are follow displacement of the plungers 17 thus ejectmg the seeds through the opening 9 into the furrow.

It is obvious that the intervals between' the discharges of seeds through the opening 9 may be controlled by timmg the gearing and changin the sprockets; also the quantity of see s pocket may be governed by adjusting the plungers 17 on the pins 19 as previously described. 'i

It is apparent that the seeds will be plant ed at regular intervals in predetermined uantities and the number dropped at each ischarge--will be ejected in collected" order and not scattered. 1

What I-claim, is:

1;. The combination'ina seed planter, of

an axle, ground wheels fixed on the. axle, a seed drum-fixed on the axle and having a plurality of "equidistant "radial slots, pluntransverse p1ns carried by the plungers, 'a casing in which the drum is disposed, -ahop'per over the drum and from which the casing is suspended,.cam' side-plates receiving the axle and secured to the casing, saidcasing havinga dischaigge openin inthe ath of-the slots of the rum, sai plates 'aving cam guideways in which the ins of the plungers follow and provided set portions relatively adjacent. the dis charge'opening. of the casing, and a packing roller mounted in the hopper at one side and in juxtaposition to the periphery of the drum.

2. In a seed planter, the combination with a revolving drum, a plurality of plungers movable radially in the drum and having laterally projecting members, ahopper arranged above the drum, and a casing surrounding the drum, of side plates at each side of the drum, and each. plate provided with a cam groove having a concentric portion merginginto a portion ofiset outward radially of the plate and this latter groove portion merging into a portion which ter- "minates in the concentric portion and has its contourimmediately preceding the said concentric portion directed gradually outward from the center of the plate.

3. The combination in a seed planter, of an axle, ground wheels fixed on the axle, a seed drum fixed on the axle and having a plurality of uidistant radial slots, plungers mounted in the drum slots, stems extendin from the plungers and provided with s ots, transverse pins mounted in the slots of the stems, means for ad'ustably fastening. the pins in the slots of t e plungers, a casmg in which the drum isdi osed, a hopper over. the drum and from w ch the casing is suspended, cam side plates receiving t e axle and securedto'the casin casing having a discharge opening n the discharged from each said path of the slots of the drum, said plates having cam guideways in which the pins of the plungers follow and provided with radial off-set portions relatlvely adjacent the .5 discharge opening of the casing, and a packi'ng roller mounted in the hopper at one side 3nd in juxtaposition to the periphery of the rum,

In testimony whereof I have signed my name to this specification in'the presence of 10 two subscribing witnesses.

RUPERT R. GIBSON.

Witnesses:

LIZZIE AKIN, -E. J. SUTHIERLAND. 

